| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* linux/include/asm-arm/arch-h720x/debug-macro.S |
| 2 | * |
| 3 | * Debugging macro include header |
| 4 | * |
| 5 | * Copyright (C) 1994-1999 Russell King |
| 6 | * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | .equ io_virt, IO_BASE |
| 15 | .equ io_phys, IO_START |
| 16 | |
| 17 | .macro addruart,rx |
| 18 | mrc p15, 0, \rx, c1, c0 |
| 19 | tst \rx, #1 @ MMU enabled? |
| 20 | moveq \rx, #io_phys @ physical base address |
| 21 | movne \rx, #io_virt @ virtual address |
| 22 | add \rx, \rx, #0x00020000 @ UART1 |
| 23 | .endm |
| 24 | |
| 25 | .macro senduart,rd,rx |
| 26 | str \rd, [\rx, #0x0] @ UARTDR |
| 27 | |
| 28 | .endm |
| 29 | |
| 30 | .macro waituart,rd,rx |
| 31 | 1001: ldr \rd, [\rx, #0x18] @ UARTFLG |
| 32 | tst \rd, #1 << 5 @ UARTFLGUTXFF - 1 when full |
| 33 | bne 1001b |
| 34 | .endm |
| 35 | |
| 36 | .macro busyuart,rd,rx |
| 37 | 1001: ldr \rd, [\rx, #0x18] @ UARTFLG |
| 38 | tst \rd, #1 << 3 @ UARTFLGUBUSY - 1 when busy |
| 39 | bne 1001b |
| 40 | .endm |